void  SetProjectParameters(float fov,float aspect,float nearz,float farz,vect3d vEyePt,vect3d vLookatPt,vect3d vUpVec)

                Set the projection parameters.

                fov: filed of view

                aspect: aspect ratio if screenn

                nearz: Z-value of the near view-plane.

                farz: Z-value of the far view-plane.

                vEyePt,vect3d,vUpVec: it will determine the view matrix.

NOTE:    Aspect,fov: It modify the main values, and when you call the beginrender the aspect ratio will be by the video, and by this value. But in the function the aspect ratio will be only by this value.